/* * Copyright (c) 2001-2004 Swedish Institute of Computer Science. * All rights reserved.  *  * Redistribution and use in source and binary forms, with or without modification,  * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, *    this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, *    this list of conditions and the following disclaimer in the documentation *    and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products *    derived from this software without specific prior written permission.  * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY  * OF SUCH DAMAGE. * * This file is part of the lwIP TCP/IP stack. *  * Author: Adam Dunkels <adam@sics.se> * */#ifndef __LWIP_DEBUG_H__#define __LWIP_DEBUG_H__#include "lwip/arch.h"/** lower two bits indicate debug level * - 0 off * - 1 warning * - 2 serious * - 3 severe */#define LWIP_DBG_LEVEL_OFF     0x00#define LWIP_DBG_LEVEL_WARNING 0x01 /* bad checksums, dropped packets, ... */#define LWIP_DBG_LEVEL_SERIOUS 0x02 /* memory allocation failures, ... */#define LWIP_DBG_LEVEL_SEVERE  0x03#define LWIP_DBG_MASK_LEVEL    0x03/** flag for LWIP_DEBUGF to enable that debug message */#define LWIP_DBG_ON            0x80U/** flag for LWIP_DEBUGF to disable that debug message */#define LWIP_DBG_OFF           0x00U/** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */#define LWIP_DBG_TRACE         0x40U/** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */#define LWIP_DBG_STATE         0x20U/** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */#define LWIP_DBG_FRESH         0x10U/** flag for LWIP_DEBUGF to halt after printing this debug message */#define LWIP_DBG_HALT          0x08U#ifndef LWIP_NOASSERT#define LWIP_ASSERT(x,y) do { if(!(y)) LWIP_PLATFORM_ASSERT(x); } while(0)#else  /* LWIP_NOASSERT */#define LWIP_ASSERT(x,y) #endif /* LWIP_NOASSERT *//** print "m" message only if "e" is true, and execute "h" expression */#ifndef LWIP_ERROR#define LWIP_ERROR(m,e,h) do { if (!(e)) { LWIP_PLATFORM_ASSERT(m); h;}} while(0)#endif /* LWIP_ERROR */#ifdef LWIP_DEBUG/** print debug message only if debug message type is enabled... *  AND is of correct type AND is at least LWIP_DBG_LEVEL */#define LWIP_DEBUGF(debug,x) do { \                               if ( \                                   ((debug) & LWIP_DBG_ON) && \                                   ((debug) & LWIP_DBG_TYPES_ON) && \                                   ((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \                                 LWIP_PLATFORM_DIAG(x); \                                 if ((debug) & LWIP_DBG_HALT) { \                                   while(1); \                                 } \                               } \                             } while(0)#else  /* LWIP_DEBUG */#define LWIP_DEBUGF(debug,x) #endif /* LWIP_DEBUG */#endif /* __LWIP_DEBUG_H__ */